{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,11]],"date-time":"2026-09-11T23:20:34Z","timestamp":1789168834460,"version":"build-2803163510"},"reference-count":43,"publisher":"American Society of Tropical Medicine and Hygiene","issue":"2","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2015,2,4]]},"abstract":"<jats:p>We describe the laboratory-confirmed etiologies of illness among participants in a hospital-based febrile illness cohort study in northern Tanzania who retrospectively met Integrated Management of Adolescent and Adult Illness District Clinician Manual (IMAI) criteria for septic shock, severe respiratory distress without shock, and severe pneumonia, and compare these etiologies against commonly used antimicrobials, including IMAI recommendations for emergency antibacterials (ceftriaxone or ampicillin plus gentamicin) and IMAI first-line recommendations for severe pneumonia (ceftriaxone and a macrolide). Among 423 participants hospitalized with febrile illness, there were 25 septic shock, 37 severe respiratory distress without shock, and 109 severe pneumonia cases. Ceftriaxone had the highest potential utility of all antimicrobials assessed, with responsive etiologies in 12 (48%) septic shock, 5 (14%) severe respiratory distress without shock, and 19 (17%) severe pneumonia illnesses. For each syndrome 17\u201327% of participants had etiologic diagnoses that would be non-responsive to ceftriaxone, but responsive to other available antimicrobial regimens including amphotericin for cryptococcosis and histoplasmosis; anti-tuberculosis therapy for bacteremic disseminated tuberculosis; or tetracycline therapy for rickettsioses and Q fever. We conclude that although empiric ceftriaxone is appropriate in our setting, etiologies not explicitly addressed in IMAI guidance for these syndromes, such as cryptococcosis, histoplasmosis, and tetracycline-responsive bacterial infections, were common.<\/jats:p>","DOI":"10.4269\/ajtmh.14-0496","type":"journal-article","created":{"date-parts":[[2014,11,11]],"date-time":"2014-11-11T03:53:57Z","timestamp":1415678037000},"page":"454-462","source":"Crossref","is-referenced-by-count":17,"title":["Etiologies of Illness Among Patients Meeting Integrated Management of Adolescent and Adult Illness District Clinician Manual Criteria for Severe Infections in Northern Tanzania: Implications for Empiric Antimicrobial Therapy"],"prefix":"10.4269","volume":"92","author":[{"given":"Matthew P.","family":"Rubach","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Venance P.","family":"Maro","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"John A.","family":"Bartlett","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"John A.","family":"Crump","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"2795","reference":[{"issue":"(Suppl 1)","key":"R1","series-title":"Bull World Health Organ","first-page":"7","article-title":"Integrated management of childhood illness by outpatient health workers: technical basis and overview. 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